#include <stdio.h>
#include <stdlib.h>

int main(int argc, char* argv[])
{
    printf("negate(10) = %d\n",negate(10));
    printf("negate(0) = %d\n",negate(0));
    printf("negate(-10) = %d\n",negate(-10));

    printf("increment(10) = %d\n",increment(10));
    printf("increment(0) = %d\n",increment(0));
    printf("increment(-10) = %d\n",increment(-10));

    return 0;
}